Assalamualaikum and a very good morning to our lovely lecturer, Mr Shahrul and all my friend. today I would like to give a speech about the Moon and the Star.
The nearest of all astronomical bodies is an old friends which appears in the stories and songs of many cultures. The Moon is our lone natural satellite, a body that orbits or circles the earth about once a month under the force of gravity, which is the magnetic pull of the Earth. The Moon's diameter is a quater that of the earth's. its distance from us is 384000 km (283000 miles) and it is the only body in space to which human beings have travelled. If we compare sizes, the Moon is roughly the size of a baseball while the Earth is that of a basketball.
Star. I love to watch it especially when I feel lonely and sad. the brightness and the beauty make me feel warm and happy. In the night sky, the stars and the planets seem to be at the same distance from the Earth, but that is an illusion. The stars are distant suns. Even the second nearest star which is called Alpha centuri is much farther away than the sun. At such distances the Stars, no matter what their sizes are look like points of light. Nevertheless, there is a great deal of diversity among stars. some are much hotter than the sun while others are considerably cooler. some stars are brightly enough to be seen with the naked eye over vast distances while others are barely visible. This depends on whether a star has a tenth or a hundred times more of the sun's contents and also on its aging process called Stellar Aging. This is the process of change in a star brought about its aging. It is a very slow process . It takes millions and billions of years for stars for age. As a result, Stars appear unchanging. Thank you!
The nearest of all astronomical bodies is an old friends which appears in the stories and songs of many cultures. The Moon is our lone natural satellite, a body that orbits or circles the earth about once a month under the force of gravity, which is the magnetic pull of the Earth. The Moon's diameter is a quater that of the earth's. its distance from us is 384000 km (283000 miles) and it is the only body in space to which human beings have travelled. If we compare sizes, the Moon is roughly the size of a baseball while the Earth is that of a basketball.
Star. I love to watch it especially when I feel lonely and sad. the brightness and the beauty make me feel warm and happy. In the night sky, the stars and the planets seem to be at the same distance from the Earth, but that is an illusion. The stars are distant suns. Even the second nearest star which is called Alpha centuri is much farther away than the sun. At such distances the Stars, no matter what their sizes are look like points of light. Nevertheless, there is a great deal of diversity among stars. some are much hotter than the sun while others are considerably cooler. some stars are brightly enough to be seen with the naked eye over vast distances while others are barely visible. This depends on whether a star has a tenth or a hundred times more of the sun's contents and also on its aging process called Stellar Aging. This is the process of change in a star brought about its aging. It is a very slow process . It takes millions and billions of years for stars for age. As a result, Stars appear unchanging. Thank you!
